<template>
  <div class="icons">
    <swiper>
      <swiper-slide v-for="(page,index) of pages" :key="index">
    <div class="icon"
          v-for="item of page"
          :key="item.id">
      <div class="icon-img">
      <img class="icon-img-content" :src='item.imgUrl'>
      </div>
        <p class="icon-desc">{{item.desc}}</p>
    </div>
      </swiper-slide>
    </swiper>
  </div>
</template>

<script>
export default {
  name: 'HomeIcons',
  props: {
    list: Array
  },
  computed: {
    pages () {
      const pages = []
      this.list.forEach((item, index) => {
        const page = Math.floor(index / 8)
        if (!pages[page]) {
          pages[page] = []
        }
        pages[page].push(item)
      })
      return pages
    }
  }
}
</script>

<style lang="stylus" scoped>
.icons >>> .swiper-container
  height 0
  padding-bottom 50%
  overflow hidden
.icon
  position relative
  float left
  width 25%
  height 0
  padding-bottom 25%
  overflow hidden
.icon-img
  position absolute
  top 0
  left 0
  right 0
  bottom .44rem
  box-sizing border-box
  padding .1rem
 .icon-img-content
   height 100%
   display block
   margin 0 auto
 .icon-desc
  position absolute
  right 0
  left 0
  bottom 0
  color #333333
  height .44rem
  line-height .44rem
  text-align center
  overflow hidden
  white-space nowrap
  text-overflow ellipsis
</style>
